Motor for tube-cleaners.



H. s.. STORMER. MOTOR FOB TIBE GLEANERS.

APPLICATION FILED FEB. 10, 1909.

Patented Feb. 15, 1910.

FTQ.

HARRY S. STORMER, OF JOHNSTOWN, PENNSYLVANIA:

MOTOR FOR TUBE-CLEANERS.

Specification of Letters Patent. Patented Feb. 15, 1910- Application filed February 10, 1909. Serial No. 477,179.

To all whom it may concern:

Be it known that I, HARRY S. S'roRMER, a citizen of the United States, residing at Johnstown, in the county of Cambria and State of Pennsylvania, have invented new and useful Improvements in Motors for Tube-Cleaners, of which the following is a specification.

This invention relates to a compound motor for tube cleaners, and the primary object of the same is to provide means of a practical and effective nature within the minimized dimensions necessary in motors of this class for producing sufficient power to carry and practically operate a cutter or knocker or vibrating cleaning means and to, insure a regular or steady rotation of the motor shaft through the medium of a dual ing a simple and strong and durable construction and wherein the parts may be readily separated for the purpose of cleaning and easily replaced when wornand unfit for further service.

With these and other objects and advantages in view, the invention consists in the construction and arrangement of the several parts which will be more fully hereinafter specified.

In the drawing: Figure l is a longitudi nal vertical section of a double piston motor embodying the features of the invention and showing tube cleaning mechanism operatively associated therewith and illustrated in elevation. Fig. 2 is a transverse vertical section on the line 22, Fig. 1. Figs. 3, 4, 5, 6 and 7 are detail perspective views of parts of the motor arranged in alined' position in the order in which they areiassembled. Figs. 8 and 9 are detail perspective views of shaft sections which are'associated to provide a continuous shaft for the motor and having the dual piston organization forming a part thereof.

As hereinbefore indicated, the present invention relates more particularly to the motor means of an advantageous character for operating tube cleaning mechanism and to overcome numerous disadvantages incident to tube cleaning mechanis having as a part of the organization there dl a motor device, and while one form of tube cleaning mechanism is illustrated as a preferred structure, it will be understood that other cleaning mechanism might be applied to the motor, and, further, the latter may be used as an actuating means for mechanisms other than tube cleaning mechanisms.

The double piston motor means embodying the features of the invention comprises an outer shell or casing 5 with opposite internally screw-threaded extremities in which.

are respectively fitted inlet and outlet caps 6 and 7, the inlet cap 6 having a central collar 8 surrounding a feed opening 9 and in which is fitted a tubular member 10 for supplying the motor with, the motive medium from any suitable source and also serving as a handle means to be grasped by the operator for conveniently inserting the motor carrying the cleaning mechanism into .or withdrawing the same from a tube or flue, The cap 7 also has a central collar 11 provided with an opening 12 through which the shaft of the motor projects, as

will be hereinafter explained, and in the cap- 7 exhaust openings 13 are formed, as clearly shown by Fig. 1. Forced into the casing" I by suitable pressure are two cylinders 14; and 15 between which is snugly interposed a center bearing 16 and a ainst the outer ends of the respective cylinders are end bearings 17 and 18 held tightly against the ends of the cylinders with which they directly cooperate by the caps 6 and 7 The end bearing 17 has a central closed --seat 19 and the end bearing 18 is formed with an open collar 20 projecting forwardly therefrom. The end bearing 17 below the seat 19 is formed with two inlet ports 21 and 22, the inlet port 21 communicating With the interior of the cylinder 14 through the medium of an inlet recess 23, and the port 22 coinciding with a continuation port 24 in the wall of the said cylinder 14:, the port .24 being excluded throughout its entire length from communication with the interior of the said cylinder 14, The port 2 1 at its forward extremity coincides with an auxiliary continuation port 25 in the wall, of the center bearing 16 and .at its front extremity the said port 25 opens into an inlet recess 26 communicating with the interior of the second cylinder 15. The cylinder 14 at apoint above and distant from the recess 23 has an exhaust recess 27 opening out through the front extremity thereof and coinciding with a continuation exhaust port 28 in the center bearing 1.6, the front extremity of the port 28 also coinciding with an auxiliary continuation exhaust port 29 in the wall of the second cylinder 15, the latter also having an exhaust recess 30 at a point above and distant from the inlet recess 26 thereof. The front extremity of the port 29 and the exhaust recess 30 respectively coincide withexhaust ports 31 and 32 in the outlet end bearing 18, the ports 31 and 32 being located above the collar 20 and the exhaust therefrom eventually escaping through the outlets 13' of the cap 7. The caps 6 and 7 form with the adjacent end bearings 17 and 18 an inlet chamber 33 and an outlet chamber 34-, respectively. The motive medium flows through the tubular member 10 into the chamber 33 and from the latter asses through the ports 21 and 22 to the cylinders 14 and 15 and I finally escapes into the chamber 34 and from the latter through-the openings 13 within the tube or fine in which the motor is inserted and may operate in a measure to soften or loosen up the sediment or other matter within the tube or flue.

It will be noted that the motive medium in a prime power generating condition is independently admitted to the cylinders 14 and 15 and has the same forceful effect on the rotary means within the said cylinders and which will be presently explained. Likewise the exhaust from the two cylinders is independent, or the exhaust from one cylinder does not in the 1 ast interfere with the operation of the rotar means within the remaining cylinder. To effect a tight fitting of the inlet and outlet bearings 17 and 18 and the center bearing 16 the opposite ends of the two cylinders 14 and 15 are bored out or formed with annular recesses 35 and portions of the saidv bearings are fitted in these recesses, as shown by Fig; 1.

A shaft is rotatably disposed in the centers of the two cylinders and iscomposed of two sections 36 and 37, the forward end of the section 36 having a diametrically ex- -tending key or spline 38 fitted in agroove 39 in the adjacent inner end of the section 37 so that both shaft sections uniformly rotate,

I but may be separated for convenience in .discarding' the remainin which may be unimpaire further practical use. The shaft section 36 .has -.a piston enlargement or a piston 40' incleaning or in replacing one shaft ection inthe event of wear or breakage without shaft section or adapted'for tegrally formed therewith, and the shaft section 37 likewise has apiston enlargement or piston 41 integrally formed therewith,

. both pistons 40 and 41 being provided with or Wings 43 has a spring 44 interposed between the inner extremities thereof to facilitate the projection of the same andnlaintain a practical contact at their outer ends with the wall of the chamber 43. -'The pistons 40 I and 41 are of materially less diameter than the diameters of the chambers 43, and the said chambers are eceentrically disposed in the cylinders 14 and 15, as clearly shown by -Figs.'2', 4 and 6. The blades or wings 42 of the two pistons 40 and 41 are arranged primarily to workin planes 'at right angles to each other so that when the projected blade of the piston in the first cylinder 14 is about to occupy a position whereby its rotative force, owing to 'the pressure of the motive medium thereagainst, is about to become ineffective, the blade of the piston 41 in the second cylinder'will be' in position to receive the pressure of the motive medium and operate to regularly rotate. the shaft made up of the sections 36 and 37 without the least loss of power or regularity in the rotation of the shaft. Practical demonstration has proved that this double piston motor for actuating tube or llue cleaning means or mechanism is much more eti'eet-ive than a single motor, as an uninterrupted or invariable rotation is given to the cleaning means or I mechanism with the result that the latter equally operates on all parts of the tube or flue. The rear end of the shaft sec- ,tion 36 is reduced as at 45 and freely rotates in the seat 19 of the inlet end bearing 17 and the front extremity of the shaft section 37 rotatably projects through'the collars 20 and 11 of the front end bearing 18 and cap 7 respectively, the said shaft section 37 continuing beyond or in advance of the cap 7 fora suitable distance and having attached thereto as shown a tube cleaning mechanism 46 which has both a rotating and vibrating operation and is'similar to that disclosed in my pending application Serial Number 425,730, filed April 7, 1908.

At any time desired the caps 6 and 7 may beremoved and the cylinders and shaft sections, together with the intermediate bearing 16, may be forced out of the shell 5 and cleaned and subsequently reset within the shell or other similar parts substituted for those that may have become worn and unfit for further practical operation.

It will also be understood that changes in the proportions and dimensions may be adopted without departing from the spirit of the invention.

\Vhat is claimed is:

1. In a motor of the class described, an outer casing, cylinders contiguously arranged in alinement and frictionally held' within the casing, opposite end and intermediate bearings separably engaging the cylinders, the cylinders and end and intermediate bearings having inlet and exhaust ports extending therethrough and independently communicating with the cylinders, and a shaft made. up of sections having in tel-mediate separable coupling means loosely rotatable within and inclosed by the intermediate bearing and engaging the end bearings and also provided with pistons in the respective cylinders, the pistons having pressure receiving means disposed at different angles within the cylinders.

12. In a motor of the class described, an inclosing casing, contiguously arranged alined cylinders frictionally held within the casing and having independent inlet and exhaust means, a shaft made up of in.- termediately coupled sections, each section having a piston operating in one of the cylinders, the pistons being provided with pressure receivingmeans at different angles, end and intermediate bearings separably. associated with the cylinders, the intermediate bearings -;surrounding the coupled extremities of the shaft sections between the inner opposing ends of the cylinders, the shaft sections, cylinders and bearings being se arable from the casing, and end caps separably connected to the casing and forming chambers at the opposite extremities of the latter,

one extremity of the shaft being projectedthrough and outwardly beyond the one cap.

3. In a motor of the class described, contiguously arranged alined cylinders having independent inlet and exhaust means, a

shaft made up of intermediately coupled sections and having independent pistons operating in the respective cylinders and provided with pressure receiving means at different angles in the said cylinders, a casing in which the cylinders are frictionally mounted, end and intermediate bearings separably engaging the cylinders, the intermediate bearing forming a continuation of one cylinder with respect to the other and having a portion of the inlet and exhaust means extending therethrough, the intermediate bearing also loosely surrounding the coupled extremities of the shaft sections and inclosing the latter between. the cylinders, and end caps secured to the casing, one of the end caps having an inlet device for a propulsive medium and the other having outlets for the exhaust of said medium, one extremity of the shaft being extended through the cap having the exhaust outlets.

4. In a motor'of the class described, an outer casing, cylinders contignously arranged in longitudinal alinement and held solely by friction within the casing, end and intermediate bearings directly and separably engaging the outer and inner ends of the cylinders, the intermediate bearing having its opposite faces snugly fitted in portions of the inner ends of the cylinders, the cylinders and end and intermediate bearings having inlet and exhaust ports extending therethrough [and independently communicating with the cylinders, and a shaft composed of sections having inner reduced. extremities provided with readily separable coupling 'means, the inner reduced extremities of the shafts and coupling means being loosely held and rotatable in the intermediate bearing, the shaft sections between the end and intermediate bearings being diametrically enlargedto form pistons which are located in the respective cylinders, the pistons having slidable pressure receiving means which are disposed at different angles in the respective pistons so that'when the pressure receiving means of one piston is reach ng the point 'of exhaustthe pressure receiving means of the remaining piston will be in position to become active as driving means for the shaft.

In testimony whereof I have hereunto set my hand in presence of two subscribing w1t nesses.

HARRY S. STORMER. l/Vitnesses:

. D'. J. Jonas, B. J. PICKING. 

